jman 31 wrote:
A megadrum will run off usb power which is about 1/2 an amp. So anything over 500ma is fine. You can't have too many amps as the circuit will only use what it needs (most typical power adapters won't be rated for over 5-6 amps). So using the info you provided, minimum requirements would be 220v AC/9v DC/ 500ma.
Thanks for the info! It seems all so obvious, but I was a little confused by the fact that USB power is 5V and external power requires 7V - 12V.
I know USB power should be around 500mA, so it makes sense external power should provide at least the same.
And I guess I mixed up Volts and Amps thinking that I could fry the system by using too many amps.
It's starting to come back to me now.... all that knowledge is from way back, so I really have to dig deep! haha
Rens